The Ratio of Jet Cross Sections at s**(1/2)=630 GeV and 1800 GeV

Details The Ratio of Jet Cross Sections at s**(1/2)=630 GeV and 1800 GeV The Ratio of Jet Cross Sections at s**(1/2)=630 GeV and 1800 GeV

2000-08-29

arxiv.org/abs/hep-ex/0008072v3

Phys.Rev.Lett.86:2523-2528,2001

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages, 3 figures, 2 tables Note on V2: addressed PRL review comments with small wording changes. Note on V3: revised Figs.

Scientific paper

10.1103/PhysRevLett.86.2523

The DO Collaboration has measured the inclusive jet cross section in proton-antiproton collisions at s**2 = 630 GeV. The results for pseudorapidities -0.5 to 0.5 are combined with our previous results at s**2 = 1800 GeV to form a ratio of cross sections with smaller uncertainties than either individual measurement. Next-to-leading-order QCD predictions show excellent agreement with the measurement at 630 GeV; agreement is also satisfactory for the ratio. Specifically, despite a 10% to 15% difference in the absolute normalization, the dependence of the ratio on jet transverse momentum is very similar for data and theory.

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